Introduction
The connection profile decides how the logger tries to communicate with the outside world.
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This will bring back to Advanced config dialog. The new active profile name will show on the Connection profile button.
Troubleshooting
About box
Navigate to the About box:
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Timeout: time the logger waits before retrying to send the same message to the server.
Events to send: number of events waiting to be sent.
GSM state: RASSERVER: Remote Access Server is running, basically we can call the logger, there is no active GPRS connection.
PPP: GPRS connection is active. We can reach the logger remotely either using the GPRS IP address if it is routed or we can call the logger on the data number.
The following parameters are retrieved only at modem startup:
GSM regstration:GSM registration: Shows whether the modem managed to register to any GSM networks. (Usual states: NOTREGISTERED, REGISTERED-HOME, REGISTERED-ROAMING)
GSM operator: Network the modem managed to register to.
GSM signal displays a percentage value proportional to -109 .. -51 dBm range. -109dBm = 0%. -51dBm = 100%.
GSM IMEI: International Mobile Station Equipment Identity: identifies the modem.
GSM IMSI: International Mobile Subscriber Identity: Identifies the SIM card.
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When we have a working configuration and working communication: Comms state: NOTIFYSAMPLES or LOOPWAIT Sending state: IDLE or OK GSM state: RASSERVER for dialup-only or PPP for GPRS connection
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System log
Navigate to real-time syslog screen:
The Real-time syslog dialog shows the important system events as they happen in real-time.
It takes a little practice to be able to filter out the communication related information from the system log,
but it gives the sequence of events which may help to rectify communication related issues.
"Restart comms" button forces the GSM modem handler and the data event sender modules to restart.
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The example above shows that the DNS server could not resolve the host name iihome.hiav.networkrail.co.uk, which tells us we are most likely to talk to wrong DNS server, maybe connected the wrong network. |
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